Bounds on the minimum distance of trellis codes

The performance of trellis codes is determined by their minimum Euclidean distance. Upper bounds on this minimum distance valid for phase-shift-keyed (PSK) signals that improve on previously derived bounds are derived. Although the bound is valid only for PSK signals, the bounding techniques developed here can be extended to other equal-energy configurations and hence could pave the way to obtaining more general results.<
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